However, soon after these fierce outbreaks, the virus died out, at least temporarily.
然而，这些病毒在爆发后不久就消失了，至少暂时是这样。
The outbreaks are spread over 40-50 countries.
此次爆发波及至少40 ~ 50个国家。
What other examples of swine flu outbreaks are there?
还有其他猪流感病毒爆发的例子吗？
The machine will help agency scientists determine the source of outbreaks.
该机器将帮助科学家确定暴发源。
The threat to international security posed by outbreaks is an obvious example.
疾病暴发对国际安全造成的威胁是一个明显的例子。
That is about 8 outbreaks per year.
每年有8起疾病爆发事件。
Safety at home is just as vital to prevent disease outbreaks.
家居安全对于防止疾病暴发同样至关重要。
The outbreaks occur most often in the summer and early fall.
暴发最常发生在夏季和初秋。
Surgical face masks can offer some protection against viral outbreaks.
医用口罩对病毒性疾病有一定保护。
You'll explore a scenario in which a form is used to report disease outbreaks.
我们将介绍一种使用表单报告疾病爆发的情形。
Infection can also occur by inhalation, particularly during outbreaks in hospital.
通过呼吸也可发生感染，尤其是在疾病暴发期间的医院中。
But because they tend to live in clusters, they can be the source of outbreaks.
然而，因为他们大多为群居生活，这可能使得他们成为疾病爆发的源头。
Both diseases are rare, but have a capacity to cause dramatic outbreaks with high fatality.
这两种疾病极为罕见，但有引起剧烈暴发的潜力，且病死率很高。
Apart from casualties, outbreaks of infectious disease can be a public health concern after earthquakes.
除了地震期间造成的直接伤亡外，传染病的爆发是需要关注的公共卫生问题。
Outbreaks can occur among children in day care Settings.
此症可于儿童日间护理院内造成爆发。
Outbreaks can occur among children in day care Settings.
此症可于儿童日间护理院内造成爆发。
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